Quick-turn PCB design refers to the process of rapidly designing and producing a printed circuit board (PCB) prototype. This process is typically used for projects where time is of the essence, such as in the development of new products or in urgent repair situations.

The quick-turn PCB design process typically involves the following steps:

• PCB design: The circuit schematic is created and the PCB layout is designed using specialised software.
• Component selection and procurement: Components are selected based on the design specifications and sourced from suppliers.
• PCB fabrication: The PCB is fabricated using specialized equipment, typically through a PCB manufacturer or service bureau.
• Component assembly: The components are assembled onto the PCB using soldering techniques, either by hand or through automated equipment.
• Testing and validation: The completed PCB is tested to ensure that it functions as intended and meets the design requirements.

The main challenge in quick-turn PCB design is to complete the entire process as quickly as possible while still maintaining a high level of quality. This requires close coordination between the design team, component suppliers, and assembly technicians, as well as the use of specialized equipment and techniques to speed up the process.

Quick-turn PCB design can be done in-house if the necessary resources and expertise are available, or it can be outsourced to a specialized service provider. The choice between in-house design and outsourcing will depend on factors such as the complexity of the design, the required level of quality, and the available resources.